Robot



FIG. 1 is a front, top, right perspective view for a robot, showing the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines of even length shown in the drawings illustrate portions of the robot that form no part of the claimed design. 

CLAIM The ornamental design for a robot, as shown and described. 